Please advise: can misfortune change on its own?

[Cohen]

In my Mod I changed something about scales.
Here scales change:

Growth now make pop growing/dying at double rate (0.4%) and +/- 3% gold at point.
Productivity is +/- 20% resources at point, and +/- 4% gold.
Fortune is now 10% chances of event (instead of 5%). Still 10% modifier from good/bad even.

My aim is to make them more useful if you pay for them, and less exploitable if you want to take design points.
My Balance Mod is still under work however.